The last time fans saw When Calls the Heart's Elizabeth Thornton and Nathan Grant, they were hopping on a train out of Hope Valley in hopes of a brighter future - but where will they stand come season 13? "Nathan and Elizabeth take steps forward," Erin Krakow exclusively told Us Weekly ahead of the season 13 premiere on Sunday, January 4, teasing that the TV couple's time in Cape Fullerton will be important to their growth. The actress, who plays Elizabeth on the Hallmark series, revealed, "They get romantic together. They get silly together.